Mechanochemical Release of N‐Heterocyclic Carbenes from Flex‐Activated Mechanophores
Abstract
We have discovered a new flex‐activated mechanophore that releases an N‐heterocyclic carbene (NHC) under mechanical load. The mechanophore design is based upon NHC‐carbodiimide (NHC‐CDI) adducts and demonstrates an important first step toward flex‐activated designs capable of further downstream reactivities. Since the flex‐activation is non‐destructive to the main polymer chains, the material can be subjected to multiple compression cycles to achieve iterative increases in the activation percentage of mechanophores. Two different NHC structures were demonstrated, signifying the potential modularity of the mechanophore design.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 07, 2021
- Source ID
- 10.1002/ange.202100576
Entities
People
- Allison G. Roessler
- Andrew J. Boydston
- Hang Shen
- Michael B. Larsen
- Paul M Zimmerman
Organizations
- Army Research Office
- National Institutes of Health
- National Science Foundation
- Oglethorpe University
- University of Michigan
- University of Wisconsin–Madison
- Western Washington University